#MOC
既存の[[🗃️クラス]]を複数組み合わせて使う手順を「窓口」となる[[🗃️クラス]]を作って、シンプルに利用できるようにする[[🗃️デザインパターン]]。読み方はファサード(=建物の表玄関を意味する)。
```mermaid
classDiagram
MovieWatchingFacade o-- Television
MovieWatchingFacade o-- SoundSystem
MovieWatchingFacade o-- BluRayPlayer
class MovieWatchingFacade{
+watchMovie()
}
class Television{
+turnOn()
}
class SoundSystem{
+turnOn()
+increaseVolume()
}
class BluRayPlayer{
+turnOn()
+play()
}
```
```php
class Television
{
public function turnOn() {
echo "Turning on the television...\n";
}
}
class SoundSystem
{
public function turnOn() {
echo "Turning on the sound system...\n";
}
public function increaseVolume() {
echo "Increasing the volume...\n";
}
}
class BluRayPlayer
{
public function turnOn() {
echo "Turning on the BluRay player...\n";
}
public function play() {
echo "Playing the movie...\n";
}
}
class MovieWatchingFacade
{
private $television;
private $soundSystem;
private $bluRayPlayer;
public function __construct() {
$this->television = new Television();
$this->soundSystem = new SoundSystem();
$this->bluRayPlayer = new BluRayPlayer();
}
public function watchMovie() {
$this->television->turnOn();
$this->soundSystem->turnOn();
$this->soundSystem->increaseVolume();
$this->bluRayPlayer->turnOn();
$this->bluRayPlayer->play();
}
}
// Client code
$facade = new MovieWatchingFacade();
$facade->watchMovie();
```
## 📚ドキュメント
- [15．Facadeパターン | TECHSCORE(テックスコア)](https://www.techscore.com/tech/DesignPattern/Facade)
## 📖ノウハウ
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